The 1992 Shockwave is an excellent figure. He is true to the original character and includes an amazing helmet. The entire 1992 DEF series of figures is actually amazingly well done. It features good colors, unique and memorable accessories and cool characters. There's really nothing about the set to not like. Shockwave is probably the best overall figure of the bunch. Here's the best of him from around the web.
1992 Shockwave Profile
Shockwave By Scarrviper
1992 Shockwave Pre Production at YoJoe.com
Shockwave at 3DJoes.com
Shockwave at Half the Battle
1992 DEF Toy Fair Catalog at JoeADay.com